The chief of police shall approve the type or character of identification markings and/or insignia placed on any motor vehicle used in the operation of any private patrol service. No vehicle used by a private patrol service shall be equipped with a red light or a siren. Such vehicles will be clearly distinguishable from the vehicles used by the Visalia Department of Public Safety as emergency vehicles. (Ord. 9517 § 1 (part), 1995: prior code § 6603)